|Publication number||US7090504 B2|
|Application number||US 11/001,266|
|Publication date||Aug 15, 2006|
|Filing date||Nov 30, 2004|
|Priority date||Dec 9, 2003|
|Also published as||US20050124183|
|Publication number||001266, 11001266, US 7090504 B2, US 7090504B2, US-B2-7090504, US7090504 B2, US7090504B2|
|Original Assignee||Hon Hai Precision Ind. Co., Ltd.|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (1), Referenced by (3), Classifications (7), Legal Events (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
1. Field of the Invention
The present invention relates to the art of electrical connectors, and more particularly to a land grid array (LGA) socket having electric connecting between an IC module and a printed circuit board (PCB).
2. The Prior Art
An LGA socket mounted on a PCB comprises a substantially flat insulative housing defining an array of passagewayways with electric contacts received therein. An IC module connects with the LGA socket for establishing electrical connection to the PCB. Each contact has a pair of free ends projecting beyond two opposite external surfaces of the socket housing for respectively engaging with corresponding pads on a bottom surface of the IC module and on a top surface of the PCB.
One problem with this design of the terminal is that a path of transmission electric current is too long so that exceeding impedance will cause EMF (electromotive force) to make the electric signal stumble.
Hence, a new LGA contact is desired to overcome the aforesaid disadvantages of the prior art.
Accordingly, a main object of the present invention is to provide a land grid array (LGA) socket having an improved terminal which can reduce impedance to ensure transmission performance in a high frequency transmission signals state.
To fulfill the above-mentioned object, a LGA socket in accordance with the present invention is provided. The socket comprises an insulative housing having a plurality of passageways, a plurality of electrical terminals being received in the passageways of the insulative housing. Each of the terminals includes a retention portion, a pressing arm being bent slantwise and extending upwardly from an end of the retention portion, a contacting arm being bent slantwise and extending downwardly from another end of the retention portion. At least one connecting plate connects the pressing arm and the contacting arm, and the at least one connecting plate disconnects the retention portion.
Reference will now be made to the drawings to describe the present invention in detail.
The terminals 10 are received in corresponding passageways 302 of the insulative housing 30. The retention portion 12 of each terminal 10 has a central part leaning against an internal side wall of the corresponding passageway 302 of the insulative housing 30. The barbs 124 of the fixing portion 122 interference corresponding side walls of the passageway 302 to secure the terminal 10 in the passageway 302. The pressing portion 162 and the contacting portion 182 extend beyond the upper and lower surfaces of the insulative housing 30, respectively.
The connecting plates 14 are not required to be particularly arranged in both sides of the pressing arm 16 and the contacting arm 18, and the number of the connecting plates 14 is not limited. If only any extra electrical path is added between the pressing arm 16 and the contacting arm 18 for reducing impedance therebetween and decreasing electrical inductor of the terminal 10, equivalent modifications and changes known to persons skilled in the art according to the spirit of the present invention are considered within the scope of the present invention as defined in the appended claims.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US4655519 *||Oct 16, 1985||Apr 7, 1987||Amp Incorporated||Electrical connector for interconnecting arrays of conductive areas|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US7503770 *||Jun 22, 2007||Mar 17, 2009||Hon Hai Precision Ind. Co., Ltd.||Electrical connector|
|US20070298627 *||Jun 22, 2007||Dec 27, 2007||Hon Hai Precision Ind. Co., Ltd.||Electrical connector|
|US20160056546 *||Jul 23, 2015||Feb 25, 2016||Fujitsu Component Limited||Contact|
|U.S. Classification||439/66, 439/515|
|International Classification||H01R12/50, H05K1/00, H01R12/00|
|Nov 30, 2004||AS||Assignment|
Owner name: HON HAI PRECISION IND. CO., LTD., TAIWAN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HOU, SUNG-PEI;REEL/FRAME:016047/0656
Effective date: 20041025
|Feb 12, 2010||FPAY||Fee payment|
Year of fee payment: 4
|Mar 28, 2014||REMI||Maintenance fee reminder mailed|
|Aug 15, 2014||LAPS||Lapse for failure to pay maintenance fees|
|Oct 7, 2014||FP||Expired due to failure to pay maintenance fee|
Effective date: 20140815